How to call a function in different nodejs files [closed] - node.js

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i need to call function sendPostData(postData) into fb.js because when i run post.js file i get error name call postData is not defined , postData i defined in fb.js i need to get the postData in the post.js if you check in below post.js i have coded req.write(postData);
how can i call the function ?
file name - fb.js
var https=require('follow-redirects').https;
require('./post');
var args = process.argv.slice(2);
console.log('url:' + args[0]);
var host =args[0].match (/w.*m/)[0];
console.log('host: ' + host);
var path =args[0].match (/(\/d.*)/)[0];
console.log('path: ' + path);
var opti = {
host: host,
port: 443,
path: path,
headers: {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:25.0) Gecko/20100101 Firefox/26.0'}
}
var req=https.request(opti, function (res){
//console.log('Status: ' + res.statusCode);
var data='';
res.on('data',function(chunk){
data += chunk
});
res.on('end',function(){
//console.log('Data: ' + data);
// console.log(data);
var match=data.match(/Directory Results for(.*)\/li>/);
if (!match) {
//console.log('Match not found');
match=data.match(/selected"(.*?)fbD/);
//console.log('Match: ' + match[0]);
}
var postData = '';
var match1=match.toString().match(/<a>|\/directory\/people\/(.*?)">(.*?)<\/a>/g);
match1=match1.removeDuplicates();
for (var index = 0; index < match1.length; index++) {
var link = match1[index];
link = link.substring(link.indexOf('"'),0);
link = 'http://www.facebook.com' + link;
postData += '&url=' + encodeURIComponent(link);
console.log(link);
//sendPostData(postData)=postData;
}
});
});
Array.prototype.removeDuplicates = function (){
var temp=new Array();
this.sort();
for(i=0;i<this.length;i++){
if(this[i]==this[i+1]) {continue}
else{
temp[temp.length]=this[i];
}
}
return temp;
}
req.end();
file name - post.js
var querystring = require('querystring');
var http = require('http');
function sendPostData(postData) {
var options = {
host: 'staging.360social.me',
port: 80,
path: '/queueNewDirectoryPageUrls',
method: 'POST'
};
var req = http.request(options, function(res) {
console.log('STATUS: ' + res.statusCode);
res.setEncoding('utf8');
res.on('data', function (chunk) {
console.log('BODY: ' + chunk);
});
});
req.on('error', function(e) {
console.log('problem with request: ' + e.message);
});
req.write(postData);
req.end();
}

Answer 1

First, in your post.js
exports.sendPostData=sendPostData;
in your fb.js:
var p = require('./post');
and then call it
p.sendPostData(postData);